400250000023 has 2 divisors, whose sum is σ = 400250000024. Its totient is φ = 400250000022.

The previous prime is 400249999997. The next prime is 400250000057. The reversal of 400250000023 is 320000052004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400250000023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400249999961 and 400250000006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400250000083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200125000011 + 200125000012.

It is an arithmetic number, because the mean of its divisors is an integer number (200125000012).

Almost surely, 2^400250000023 is an apocalyptic number.

400250000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

400250000023 is an equidigital number, since it uses as much as digits as its factorization.

400250000023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 16.

Adding to 400250000023 its reverse (320000052004), we get a palindrome (720250052027).

The spelling of 400250000023 in words is "four hundred billion, two hundred fifty million, twenty-three", and thus it is an aban number.